1,232 results match your criteria ho-1 novel

Baicalin-loaded macrophage-derived exosomes ameliorate ischemic brain injury via the antioxidative pathway.

Mater Sci Eng C Mater Biol Appl 2021 Jul 23;126:112123. Epub 2021 Apr 23.

School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, PR China. Electronic address:

Baicalin (BA), a strong free radical scavenger, has been demonstrated to exert neuroprotective effects in the treatment of ischemic stroke. However, its clinical application has been limited due to its inability to target the brain and its poor solubility. In this study, we designed novel brain-targeted BA-loaded macrophage-derived exosomes (Exo-BA) to induce neuroprotection against ischemic stroke in animal models. Read More

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Oriental Hornet () Larval Extracts Induce Antiproliferative, Antioxidant, Anti-Inflammatory, and Anti-Migratory Effects on MCF7 Cells.

Molecules 2021 May 31;26(11). Epub 2021 May 31.

Department of Anatomy, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.

The use of insects as a feasible and useful natural product resource is a novel and promising option in alternative medicine. Several components from insects and their larvae have been found to inhibit molecular pathways in different stages of cancer. This study aimed to analyze the effect of aqueous and alcoholic extracts of larvae on breast cancer MCF7 cells and investigate the underlying mechanisms. Read More

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Heparin-Binding Protein 17/Fibroblast Growth Factor-Binding Protein-1 Knockout Inhibits Proliferation and Induces Differentiation of Squamous Cell Carcinoma Cells.

Cancers (Basel) 2021 May 29;13(11). Epub 2021 May 29.

Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan.

Heparin-binding protein 17/fibroblast growth factor-binding protein-1 (HBp17/FGFBP-1) has been observed to induce the tumorigenic potential of epithelial cells and is highly expressed in oral cancer cell lines and tissues. It is also recognized as a pro-angiogenic molecule because of its interaction with fibroblast growth factor (FGF)-2. In this study, we examined the functional role of in A431 and HO-1-N-1 cells. Read More

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Haplopine Ameliorates 2,4-Dinitrochlorobenzene-Induced Atopic Dermatitis-Like Skin Lesions in Mice and TNF-α/IFN-γ-Induced Inflammation in Human Keratinocyte.

Antioxidants (Basel) 2021 May 19;10(5). Epub 2021 May 19.

College of Pharmacy, Pusan National University, Busan 46241, Korea.

This study aimed to investigate the anti-inflammatory, antioxidant, and anti-atopic dermatitis (AD) effects of haplopine, which is one of the active components in Haplopine (12.5 and 25 μM) inhibited the mRNA expressions of inflammatory cytokines IL-6, TSLP, GM-CSF, and G-CSF and the protein expressions of IL-6 and GM-CSF in TNF-α/INF-γ-stimulated HaCaT cells. In HO-induced Jukat T cells, haplopine (25 and 50 μM) suppressed the productions of proinflammatory cytokines (IL-4, IL-13, and COX-2) and increased the mRNA and protein expressions of oxidative stress defense enzymes (SOD, CAT, and HO-1) in a concentration-dependent manner. Read More

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Activation of Nrf2/HO-1 by Peptide YD1 Attenuates Inflammatory Symptoms through Suppression of TLR4/MYyD88/NF-κB Signaling Cascade.

Int J Mol Sci 2021 May 13;22(10). Epub 2021 May 13.

Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Korea.

In this study, we investigate the immunomodulatory effects of a novel antimicrobial peptide, YD1, isolated from Kimchi, in both in vitro and in vivo models. We establish that YD1 exerts its anti-inflammatory effects via up-regulation of the Nrf2 pathway, resulting in the production of HO-1, which suppresses activation of the NF-κB pathway, including the subsequent proinflammatory cytokines IL-1β, IL-6, and TNF-α. We also found that YD1 robustly suppresses nitric oxide (NO) and prostaglandin E2 (PGE) production by down-regulating the expression of the upstream genes, iNOS and COX-2, acting as a strong antioxidant. Read More

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Glucose-impaired Corneal Re-epithelialization Is Promoted by a Novel Derivate of Dimethyl Fumarate.

Antioxidants (Basel) 2021 May 22;10(6). Epub 2021 May 22.

Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy.

Glucose induces corneal epithelial dysfunctions characterized by delayed wound repair. Nuclear erythroid 2-related factor 2 (Nrf2) mediates cell protection mechanisms even through the Heme oxygenase-1 (HO-1) up-regulation. Here, we synthesized new HO-1 inducers by modifying dimethyl fumarate (DMF) and used docking studies to select VP13/126 as a promising compound with the best binding energy to Kelch-like ECH-associated protein 1 (keap1), which is the the regulator of Nrf2 nuclear translocation. Read More

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The Phenolic Antioxidant 3,5-dihydroxy-4-methoxybenzyl Alcohol (DHMBA) Prevents Enterocyte Cell Death under Oxygen-Dissolving Cold Conditions through Polyphyletic Antioxidant Actions.

J Clin Med 2021 May 4;10(9). Epub 2021 May 4.

Department of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Nishi 7, Kita 15, Kita-ku, Sapporo 060-8638, Hokkaido, Japan.

Cold preservation in University of Wisconsin (UW) solution is not enough to maintain the viability of the small intestine, due to the oxidative stress. The novel phenolic antioxidant 3,5-dihydroxy-4-methoxybenzyl alcohol (DHMBA) has dual properties to reduce oxidative stress, radical scavenging, and antioxidant protein induction, in other cells. This study was designed to determine whether DHMBA reduces cold preservation injury of enterocytes, and to identify the effector site. Read More

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Lipoxin A4 protects primary spinal cord neurons from Erastin-induced ferroptosis by activating the Akt/Nrf2/HO-1 signaling pathway.

FEBS Open Bio 2021 May 28. Epub 2021 May 28.

Department of Orthopedics, The Third Affiliated Hospital of Xinxiang Medical University, East Section of Hualan Avenue, 453000, Henan, China.

Ferroptosis is an iron-dependent programmed cell death, which participates in the pathogenesis of spinal cord injury (SCI). Our previous study has revealed that Lipoxin A4 (LXA4) exerts a protective role in SCI. Here, we investigated whether LXA4 can protect SCI through inhibiting neuronal ferroptosis. Read More

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Echinacea in hepatopathy: A review of its phytochemistry, pharmacology, and safety.

Phytomedicine 2021 Apr 26;87:153572. Epub 2021 Apr 26.

State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Ave, Wuxi, Jiangsu 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China. Electronic address:

Background: Echinacea, one of the most popular herbs with double function of immunity and anti-inflammatory activity, has now attracted much interest for a possible alternative for the treatment of hepatopathy. This review is aimed at providing a comprehensive overview of Echinacea regarding its chemical composition, pharmacological action against various hepatopathy, and safety.

Methods: A comprehensive search of published articles was conducted to focus on original publications related to Echinacea and hepatopathy till the end of 2020 using various literature databases, including China National Knowledge Infrastructure, PubMed, and Web of Science database. Read More

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The in vitro and in vivo study of oleanolic acid indole derivatives as novel anti-inflammatory agents: Synthesis, biological evaluation, and mechanistic analysis.

Bioorg Chem 2021 May 11;113:104981. Epub 2021 May 11.

School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen 529040, PR China; School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, PR China. Electronic address:

Oleanolic acid (OA) is a well-known natural product possessing many important pharmacological activities; however, its weak bioactivities significantly restrict the potential application in drug development. The structural modification of oleanolic acid is an effective mean to enhance its bioactivity with lower toxicity but it is challenging. In the present study, we systematically synthesized a series of new 11-oxooleanolic acid derivatives and evaluated their anti-inflammatory activities with a LPS induced BV2 cells inflammation model and a 12-O-tetradecanoyl phorbol-13-acetate (TPA) induced ear inflammation mice model. Read More

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Protective Effect of Lemon Peel Extract on Oxidative Stress in H9c2 Rat Heart Cell Injury.

Drug Des Devel Ther 2021 14;15:2047-2058. Epub 2021 May 14.

Citrus Research Institute, Southwest University, Chongqing, People's Republic of China.

Aim: Lemon peel, a traditional Chinese medicine, was tested in this study for its novel application in inhibiting cellular oxidative stress, and the effect of lemon peel extract (LPE) on protecting H9c2 rat heart cells from oxidative stress was investigated.

Methods: The scavenging effects of LPE on 1,1-diphenyl-2-picryhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) free radicals were measured in extracellular experiments. The 3-(4,5-dimethyl-2-thiazolinyl)-2,5-diphenyl-2-h-tetrazolylammonium bromide (MTT) assay was used to detect the cell survival rate. Read More

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The combination of sesamol and clofibric acid moieties leads to a novel potent hypolipidemic agent with antioxidant, anti-inflammatory and hepatoprotective activity.

Bioorg Med Chem Lett 2021 May 17;44:128121. Epub 2021 May 17.

Shaanxi Traffic Hospital, 276 Daxue South Road, Beilin District, Xi'an, Shannxi Province 710068, People's Republic of China. Electronic address:

Oxidative stress and inflammation have been considered the main factors in the liver injury of clofibrate (CF). To obtain a novel antihyperlipidemic agent with antioxidant, anti-inflammation and hepatoprotection, the combination of sesamol and clofibric acid moieties was performed and achieved sesamol-clofibrate (CF-Sesamol). CF-Sesamol showed significant hypolipidemia effects in hyperlipidemia mice induced by Triton WR 1339, reducing TG by 38. Read More

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PGE1 triggers Nrf2/HO-1 signal pathway to resist hemin-induced toxicity in mouse cortical neurons.

Ann Transl Med 2021 Apr;9(8):634

Department of Neurology, Affiliated Hospital of Nantong University, Nantong, China.

Background: Prostaglandin E1 (PGE1) exerts various pharmacological effects such as membrane stabilization, anti-inflammatory functions, vasodilation, and platelet aggregation inhibition. We have previously demonstrated that PGE1 has a beneficial impact on patients suffering from intracerebral hemorrhage (ICH). The related mechanism underlying PGE1's beneficial effect on ICH treatment needs further exploration. Read More

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Nanomedicine for acute respiratory distress syndrome: The latest application, targeting strategy, and rational design.

Acta Pharm Sin B 2021 May 7. Epub 2021 May 7.

Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China.

Acute respiratory distress syndrome (ARDS) is characterized by the severe inflammation and destruction of the lung air-blood barrier, leading to irreversible and substantial respiratory function damage. Patients with coronavirus disease 2019 (COVID-19) have been encountered with a high risk of ARDS, underscoring the urgency for exploiting effective therapy. However, proper medications for ARDS are still lacking due to poor pharmacokinetics, non-specific side effects, inability to surmount pulmonary barrier, and inadequate management of heterogeneity. Read More

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HDAC9 exacerbates myocardial infarction via inactivating Nrf2 pathways.

J Pharm Pharmacol 2021 May 8. Epub 2021 May 8.

First Department of Cardiology, Tangshan Gongren Hospital, Hebei, China.

Objectives: Myocardial infarction (MI) is the leading cause of death worldwide. Histone deacetylases (HDACs) collectively participate in the initiation and progression of heart diseases, including MI. This study aimed to investigate the roles of histone deacetylase 9 (HDAC9) in the development of MI. Read More

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Epac-1/Rap-1 signaling pathway orchestrates the reno-therapeutic effect of ticagrelor against renal ischemia/reperfusion model.

Biomed Pharmacother 2021 Jul 3;139:111488. Epub 2021 May 3.

Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, 6th of October City, Giza, Egypt.

Despite the renal expression of PY, the purinergic receptor for adenosine diphosphate, few data are available to discuss the renotherapeutic potential of ticagrelor, one of its reversible blockers. Indeed, the tonic inhibitory effect of this receptor has been linked to the activation of exchange protein activated by cyclic adenosine monophosphate-1 (Epac-1) protein through the cyclic adenosine monophosphate cascade. Epac-1 is considered a crossroad protein, where its activation has been documented to manage renal injury models. Read More

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Multitarget neuroprotection by quercetin: Changes in gene expression in two perinatal asphyxia models.

Neurochem Int 2021 Jul 2;147:105064. Epub 2021 May 2.

Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República (Udelar), Montevideo, Uruguay. Electronic address:

Hypoxic-ischemic encephalopathy (HIE) causes mortality and long-term neurologic morbidities in newborns, affecting pathways related to energy failure, excitotoxicity and oxidative stress that often lead to cell death. The whole process of HIE injury is coupled to changes in the expression of a great array of proteins. A nanoliposomal preparation of the flavonoid quercetin has been shown to exert neuroprotective effects in perinatal asphyxia models. Read More

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Dietary Oleocanthal Supplementation Prevents Inflammation and Oxidative Stress in Collagen-Induced Arthritis in Mice.

Antioxidants (Basel) 2021 Apr 23;10(5). Epub 2021 Apr 23.

Department of Pharmacology, School of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain.

Oleocanthal (OLE), a characteristic and exclusive secoiridoid of family, is mainly found in extra virgin olive oil (EVOO). Previous studies have reported its antioxidant, anti-inflammatory, antimicrobial, anticancer and neuroprotective effects. Since the pathogenesis of rheumatoid arthritis (RA) involves inflammatory and oxidative components, this study was designed to evaluate the preventive role of dietary OLE-supplemented effects in collagen-induced arthritis (CIA) murine model. Read More

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Noise-Induced Vascular Dysfunction, Oxidative Stress, and Inflammation Are Improved by Pharmacological Modulation of the NRF2/HO-1 Axis.

Antioxidants (Basel) 2021 Apr 19;10(4). Epub 2021 Apr 19.

Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131 Mainz, Germany.

Vascular oxidative stress, inflammation, and subsequent endothelial dysfunction are consequences of traditional cardiovascular risk factors, all of which contribute to cardiovascular disease. Environmental stressors, such as traffic noise and air pollution, may also facilitate the development and progression of cardiovascular and metabolic diseases. In our previous studies, we investigated the influence of aircraft noise exposure on molecular mechanisms, identifying oxidative stress and inflammation as central players in mediating vascular function. Read More

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Pre-Emptive Priming of Human Skin Improves Cutaneous Scarring and Is Superior to Immediate and Delayed Topical Anti-Scarring Treatment Post-Wounding: A Double-Blind Randomised Placebo-Controlled Clinical Trial.

Pharmaceutics 2021 Apr 8;13(4). Epub 2021 Apr 8.

Plastic and Reconstructive Surgery Research, NIHR Manchester Biomedical Research Centre, University of Manchester, Manchester M13 9PT, UK.

The concept of pre-emptive priming of skin pre-surgery offers a novel approach in optimizing cutaneous scarring outcome. We previously showed an anti-scarring topical (epigallocatechin-3-gallate (EGCG)) is effective in improving skin scarring when applied post-surgery. The objective was to deliver an active compound at the optimal time in order to maximize its impact and improve cutaneous scarring. Read More

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Ashwagandha (Withania somnifera) root extract attenuates hepatic and cognitive deficits in thioacetamide-induced rat model of hepatic encephalopathy via induction of Nrf2/HO-1 and mitigation of NF-κB/MAPK signaling pathways.

J Ethnopharmacol 2021 Apr 24;277:114141. Epub 2021 Apr 24.

Department of Pharmacology, Theodor Bilharz Research Institute, Kornaish El Nile, Warrak El-Hadar, Imbaba (P.O. 30), Giza, 12411, Egypt. Electronic address:

Ethnopharmacological Relevance: Ashwagandha (ASH) is one of the medicinal plants used in traditional Indian, Ayurvedic, and Unani medicines for their broad range of pharmacological activities including, tonic, aphrodisiac, energy stimulant, and counteracting chronic fatigue. Besides, it is used in the treatment of nervous exhaustion, memory-related conditions, insomnia, as well as improving learning ability and memory capacity. ASH is preclinically proven to be efficient in hepatoprotection and improving cognitive impairment, however, its beneficial effects against hepatic encephalopathy (HE) is still unclear. Read More

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Dl-butylphthalide inhibits rotenone-induced oxidative stress in microglia via regulation of the Keap1/Nrf2/HO-1 signaling pathway.

Exp Ther Med 2021 Jun 9;21(6):597. Epub 2021 Apr 9.

Department of Neurology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China.

Activated microglia are a source of superoxide which often increases oxidative stress in the brain microenvironment, increase production of reactive oxygen species (ROS) and directly or indirectly lead to dopaminergic neuronal death in the substantia nigra. Thus superoxide contributes to the pathogenesis of Parkinson's disease (PD). Evidence suggests that mitochondria are the main source of ROS, which cause oxidative stress in cells. Read More

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Alpinetin exerts anti-inflammatory, anti-oxidative and anti-angiogenic effects through activating the Nrf2 pathway and inhibiting NLRP3 pathway in carbon tetrachloride-induced liver fibrosis.

Int Immunopharmacol 2021 Apr 14;96:107660. Epub 2021 Apr 14.

Department of General Surgery, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong 226018, China. Electronic address:

Alpinetin is the major active ingredient of Alpiniakatsumadai Hayata. As a kind of novel plant-derived flavonoid, alpinetin has shown potent hepatoprotective effect against many liver diseases such as non-alcoholic fatty liver and lipopolysaccharide/d-Galactosamine-induced liver injury. However, its roles in liver fibrosis remain to be determined. Read More

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5-aminolevulinic acid combined with sodium ferrous citrate ameliorated lupus nephritis in a mouse chronic graft-versus-host disease model.

Int Immunopharmacol 2021 Apr 13;96:107626. Epub 2021 Apr 13.

Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan; Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. Electronic address:

Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by the abnormal activation of immune cells and hypersecretion of autoantibodies and causes irreversible chronic damage, such as lupus nephritis. Chronic graft-versus-host-disease (cGvHD) in mice induced by the injection of parental mouse lymphocytes into F1 hybrids leads to a disease similar to SLE. 5-aminolevulinic acid (5-ALA) is a key progenitor of heme, and its combination with sodium ferrous citrate (SFC) can up-regulate the heme oxygenase (HO-1) expression, resulting in an anti-inflammatory effect. Read More

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Xinmailong Attenuates Doxorubicin-Induced Lysosomal Dysfunction and Oxidative Stress in H9c2 Cells via HO-1.

Oxid Med Cell Longev 2021 27;2021:5896931. Epub 2021 Mar 27.

Department of Cardiology, Brain Hospital of Hunan Province, Changsha, Hunan, China.

The clinical use of doxorubicin (DOX) is limited by its cardiotoxicity, which is closely associated with oxidative stress. Xinmailong (XML) is a bioactive peptide extracted from American cockroaches, which has been mainly applied to treat chronic heart failure in China. Our previous study showed that XML attenuates DOX-induced oxidative stress. Read More

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Crystal structure of higher plant heme oxygenase-1 and its mechanism of interaction with ferredoxin.

J Biol Chem 2020 Dec 24;296:100217. Epub 2020 Dec 24.

Institute for Protein Research, Osaka University, Suita, Osaka, Japan; Department of Macromolecular Science, Osaka University, Toyonaka, Osaka, Japan. Electronic address:

Heme oxygenase (HO) converts heme to carbon monoxide, biliverdin, and free iron, products that are essential in cellular redox signaling and iron recycling. In higher plants, HO is also involved in the biosynthesis of photoreceptor pigment precursors. Despite many common enzymatic reactions, the amino acid sequence identity between plant-type and other HOs is exceptionally low (∼19. Read More

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December 2020

The protective effect of hydroxylated fullerene pretreatment on pilocarpine-induced status epilepticus.

Brain Res 2021 Aug 6;1764:147468. Epub 2021 Apr 6.

The Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China. Electronic address:

Status epilepticus (SE) is a neurological emergency. The pathological hallmark of neuronal damage after epileptic seizures could be the chain reaction of oxygen free radicals. Hydroxylated fullerenes (HFs) are novel and effective free radical scavengers, which play an important role in various neurological diseases. Read More

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The therapeutic potential of Nrf2 inducers in chronic pain: Evidence from preclinical studies.

Pharmacol Ther 2021 Apr 2;225:107846. Epub 2021 Apr 2.

Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Shanxi Medical University; Tongji Shanxi Hospital, Tongji Medical College, Huazhong University of Science and Technology, Taiyuan, 030032, China; Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China. Electronic address:

Chronic pain remains an enormous health problem affecting approximatively 30% of the world's population. Opioids as the first line analgesics often leads to undesirable side effects when used long term. Therefore, novel therapeutic targets are urgently needed to the development of more efficacious analgesics. Read More

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Daphnetin ameliorated GM-induced renal injury through the suppression of oxidative stress and apoptosis in mice.

Int Immunopharmacol 2021 Mar 31;96:107601. Epub 2021 Mar 31.

Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130001, China. Electronic address:

Gentamicin (GM), an aminoglycoside antibiotic, is one of the most effective drugs used in the treatment of various types of bacterial infections, but the major adverse effect and drug-induced nephrotoxicity of GM limit its clinical applications. Daphnetin (Daph) is a natural coumarin derivative that is clinically used to treat rheumatoid arthritis and coagulopathy and exhibits antioxidant effects. However, the effect of Daph on GM-induced nephrotoxicity has not yet been elucidated. Read More

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Semi-Synthesis of Harringtonolide Derivatives and Their Antiproliferative Activity.

Molecules 2021 Mar 4;26(5). Epub 2021 Mar 4.

State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.

Harringtonolide (HO), a natural product isolated from , exhibits potent antiproliferative activity. However, little information has been reported on the systematic structure-activity relationship (SAR) of HO derivatives. Modifications on tropone, lactone, and allyl positions of HO () were carried out to provide 17 derivatives (--). Read More

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